Java Coding Guidelines (Language Core)

IMPORTANT: This skill is for core Java language - no Spring, no Jakarta EE. For framework-specific code, see:

• springboot-coding/ - Spring Boot applications
• java-design-patterns/ - Design patterns implementation
• logging/ - Logging practices

Quick Start Checklist

Before writing Java code:

• Use Java 17+ features (records, switch expressions)
• Add Lombok to reduce boilerplate
• Never use fully qualified names inline
• Use Optional instead of null returns
• Validate inputs at method boundaries

Core Dependencies (Always Include)